X2 Series Ethernet Adapters - XtremeScale X2522, X2541


AMD now offers the XtremeScale series of network interface controllers through our acquisition of Solarflare.

Product Description

The XtremeScale™ series of Ethernet network adapters are designed for high-performance electronic trading environments and enterprise data centers; including artificial intelligence, big data, analytics, hyperscale, machine learning, storage, and telco applications.

With record-breaking low latency and high throughput, XtremeScale network adapters provide real-time packet and flow information to thousands of virtual NICs. This combination of ultra-high bandwidth, ultra-low latency, ultra-scale connectivity, and packet telemetry allows X2 series adapters to scale with each server, virtual machine or container.

For cloud data centers, Onload™ application acceleration software dramatically accelerates and scales network-intensive workloads such as in-memory databases, software load balancers, and web servers. With Onload, data centers can support 4X or more users on their cloud network while delivering improved reliability, enhanced quality of service (QoS), and a higher return on investment, without modification to existing applications.

In electronic trading environments, Onload kernel bypass application acceleration and DPDK services deliver superior small packet performance with sub-microsecond hardware latency.

In addition, XtremeScale adapters support the precision time protocol (PTP) fabric service for apps that require synchronized time stamping of packets down to single-digit nanosecond resolution.


Designed for Enterprise, Private and Public Cloud Datacenters



Target Applications

  • Electronic trading platforms
  • Public, private and hybrid-cloud data centers
  • Bare metal, containers, and virtualized environments
  • Content delivery networks

Key Features & Benefits

  • Sub-microsecond latency
  • Near-zero jitter
  • Highly scalable
  • Predictable, deterministic system performance
  • Industry's highest message rates
  • Precision Time Stamping for accurate synchronization
  • NVMe™ /TCP storage ready
  • SolarCapture™ Pro network performance monitoring



XtremeScale™ family of Ethernet adapters

XtremeScale X2522 XtremeScale X2541
Product Brief Product Brief
X2522-25G / X2522-25G-PLUS X2541 / X2541-PLUS
10/25GbE 10/25/40/50/100GbE
Dual Port Single Port
Low Profile, MD2 Low Profile, MD2
PCIe 3.1 x8 PCIe 3.1 x16
PLUS SKU includes Onload, TCP Direct, and PTP PLUS SKU includes Onload, TCP Direct, and PTP

Featured Accessories

Default Default Title Document Type Date
Acceleration Software

Onload™ - Application Acceleration Software

Onload™ dramatically accelerates and scales network-intensive applications such as in-memory databases, software load balancers, and web servers. With Onload, data centers can support 400% or more users on their cloud network while delivering improved reliability, enhanced quality of service (QoS) and higher return on investment, without modification to existing applications.

Onload allows data centers to realize:

  • Improved elasticity and efficiency, leading to a lower total cost of ownership (TCO)
  • Increased peak transaction rates, eliminating service brownouts
  • Reduced network jitter with greater response times, equating to superior quality of service


  • Add 400% or more users
  • Improve messagerates by 100%
  • Minimize server footprint 25%
  • Reduce Latency by 50%
  • Experience near zero jitter
  • Maximize capex & opex
  • Enhance quality of service

Extending Data Center Investments

Onload delivers a return on capex investments by allowing data centers to redeploy 25% or more of their load-balancing servers for other tasks. Alternatively, data centers can attain a reduction in operational expenses (opex) by shrinking the overall server footprint.

How Fast Can Your Applications Go?

Onload accelerates nearly all network-intensive TCP-based applications. Typical performance improvements when utilizing Onload include:

Use Case Application(s) Performance Increase Benchmark Documents
In-Memory Databases Couchbase, Memcached, Redis 100%
Software Load Balancers NGINX Plus, HAProxy 400%
Web Servers/ Applications NGINX Plus, Netty.io 50%

AMD has produced a series of cookbooks that outline the servers we used, the configuration done, and exactly what testing was completed. The purpose of these cookbooks is to enable customers to reproduce the results obtained, as sometimes they can appear somewhat remarkable.

To obtain a copy, contact us.

Ensuring Uptime and Network Compatibility

Onload is built from the same I/O software technology that powers nearly every financial market and high-frequency trading application on the planet. POSIX compliant, Onload ensures compatibility with TCP-based applications, management tools, and network infrastructures. In addition, Onload provides RDMA-like performance without requiring a forklift upgrade to the data center’s network infrastructure and can be deployed across x86-based platforms running Linux – bare metal, virtual machine or container.


Enterprise Service and Support

Enterprise Service and Support (ESS) from AMD delivers enterprise-class support services, including service level agreements (SLAs) suitable for deployment in Fortune 1000 data centers as well as high-frequency trading, cloud service providers and HPC environments.

ESS provides flexible service levels for a broad range of customers, from small to multi-national corporations with mission-critical applications. Customers who need to comply with Sarbanes-Oxley or similar inter-national regulatory and legal requirements, that require 24x7 support, should choose the Premium level.

ESS levels address a broad range of customers, from small sites to multi-national corporations with mission critical applications. Customers who need to comply with Sarbanes-Oxley or similar international regulatory and legal requirements should choose the Premium level.

Level Benefits Basic Standard Premium
Bug fixes Yes
Maintenance releases Yes
Support Delivery Email Email and Phone Email and Phone
Contractual SLAs Yes Yes Yes
Response Time Coverage UK Business Hours
08:00 – 17:00 UK Time
Consulting Services
Yes, additional charges applicable Limited time included per agreement

* The Premium ESS subscription must cover all server adapters purchased by the company and there is a minimum purchase requirement of 100. For more information on Basic, Standard and Premium levels of support, please contact  AMD Sales.

Network Capture

Telemetry is the Art Behind Capturing Network Packet Data

In this context telemetry is remotely collecting data on a given network packet. That data can be where a given packet was at a specific point in time along with the abstracted metadata that represents the network flow the data belongs to. Knowing everything about your network data can enable you to tune application performance while also securing your network. AMD provides several different methods for capturing network packet telemetry directly from the card itself or through a performance SolarCapture Pro driver.

XtremePackage Engine







XtremePacket Engine

Rules based action on incoming and outgoing packets can be time stamped, counted, cloned, dropped, filtered and translated

L2 Switch

Incoming and outgoing packets can switched and Intelligently steered to a collection of cores on the host

SolarCapture Pro Libpcap Driver

SolarCapture Pro (SCP) from AMD is a kernel bypass performance tuned replacement for Libpcap. It is designed to provide a high rate of packet capture to memory, in the 10s of millions of packets per second. SCP supports three operating modes: sniff, steal or both. In sniff mode packets are delivered normally to applications or the network, but a clone of each packet, both transmitted and received packets, is sent to SCP for processing. In steal mode SCP receives all the packets coming into an interface. Finally, both modes can be engaged so that two parallel applications can analyze the same packet streams. To facilitate this SCP has a feature called clustering, which enables the creation of clusters of cores that can then be attached to capture instances for processing. SCP supports Berkeley Packet Filter (BPF) which can be applied to capture so that SCP only receives the packets requested while all others follow their normal path.